That sounds like quite a journey so I hope you enjoy Steemfest, meet new friends, learn a lot, and share your highlights and pictures here.
Iceland is on my list of places to visit, but it's too cold for me to live there, although I loved Lapland last year. Being a tourist is a lot different to being a local though.
I enjoyed skiing, and the people , in Bulgaria, and loved the baltic states but have yet to visit Poland, so I'll try to look you up if I ever do go and ask for advice on where to visit and what to see.
P.S Pllease try to post pics of the Northern lights this season. It was great to knock them off my 'bucket list' 2 years ago.
Feel free to contact me If you'd like to visit Poland, I'll try to advise!
Regarding auroras - I have really bad luck with this, as I always miss the great ones and saw a proper aurora only twice (and it was not super strong too). But I still have a few months to catch an intense one ;)